Thomas i



1. M. ROBERTS AND T. BGVEY.

CUT-OUT VALVE.

APPLICATION FILED ocr. 14, i918.

1 ,368,970, Patented Feb. 15, 1921.

fig/1.

UNITED STATES THOMAS I. ROBERTS AND THOMAS BOVEY, OF CHIOAGO, ILLINOIS.

CUT-OUT VALVE.

Specification of Letters Patent.

Patented Feb. 15, 1921.

Application lcd October 14, 1918. Serial No. 258,028.

To all whom it may concern:

Be it known that we, THOMAS M. ROBERTS and THOMAS BOVEY, citizens of theUnited States, residing at Chicago, in the county of Cook and State ofIllinois, have invented new and useful Improvements in Cut-Out Valves,of which the following is a full, clear, and exact description.

Our invention relates to cut-out valves, and particularly for divertingthe exhaust from the internal combustion engine of an automobile into apipe leading from the discharge pipe thereof to a radiator for heatinthe limousine of an automobile.

eretofore it has been customary to make and keep in stock a great numberof different sized cut-out valves in order to supply the demand createdby their use in conjunction with different sizes of exhaust pipesemployed in the different makes of automobiles. Our invention isdesigned to overcome this objection and to enable a standard cut-outvalve to be used in connection with the exhaust pipes of all of thedifferent makes of automobiles.

One of the principal objections to the use of automobile heaters heatedby the exhaust of the engines thereof is the accumulation of carbonaround the seat of the cutout valve that diverts the exhaust to theheater, which sooner or later makes the valve leaky and renders itimpossible to keep the heated exhaust out of the heater and produces aheat in the limousine of the car which in mild weather renders it veryuncomfortable.

Another objection, particularly during times when the supply of metal issmall and its cost prohibitive, is the necessity of using comparativelyheavy castings, which the construction of cut-out valves heretoforeemployed, made imperative. Our invention avoids this objection andminimizes the amount of metal employed, and greatly reduces the cost ofmanufacture of the same.

In the following description of our invention and in the accompanyingdrawings, similar reference characters refer to like parts.

In the drawings:

Figure 1 is a side view of our invention.

Fig. 2 is a transverse section of the same taken on line 2-2, Fi 1.

Fig. 3 is a longitudinal section taken on line 3 3. Fig. 2.

4 is a plan view of the underside of our improved valve.

Fig. 5 is a. transverse section tekenen line 5 5, Fig. 1.

O ur invention is particularly ede for use in connection with theautomob' e heater invented by Thomas Bove for which Letters Patent ofthe United tetes were grauei ed him August 15, 1916, No. 1,194,473. Ourimproved valve is used 1n the same rel ative position to and isconnectedviththl heater in the same manner as set forth in saidpatent,and the means employed yfor erating said valve are substantially same.

The exhaust pipe A-onl a portion of which is shown in the win leads fromthe gas or internal combustion lengine not shown), and in order todivert a' rtion or all of the heated products of com uetion to theheaterk in the limousine, an elbow B is employed that connects exhaustpipe A to the pipe C that leads therefrom to the heater (not shown).

The entrance end b of the elbow is 910B gated in the direction of lengthof the el? haust pipe, and is, preferably, rectangular, and its edgesare all in the same lane. The entrance opening inclosed by sai edgesconstitutes the valve-seat; the end thereof neerest the engine is,preferably, semicirculn or rounded. and the edges of said seat are,preferably. rabbeted or beveled. This valve-seat is adapted to be closedby a Het valve D that corresponds in outline to seid seat, and isprovided with a transverse lmucf kle d at its rear end, thesemiinch'icel sides of which round said end an rollupward into theadjacent valve seat and form a transverse depression, as at as, betweenthe rear end of the valve and the rear end of the valve-seat. The objectof this depression a is, when the valve is closed, to enable il heatedproducts of combustion, as they rush past in the exhaust pipe, to createinaction or vacuum, that pulls the products of cembustion, that mightotherwise have a tendency to lea-k around the edges of the valve o ut ofthe elbow into the exhaust pipe,and thus prevent the accumulation ofcarbon in the valve-seat and on the edges of the valve engaging saidseat. In order to more effectively7 accomplish this object, the rear ofthe valve-seat is provided with a shield E, which latter connects and ismade integral with the side-walls of said elbow just Y above said seatand arches over said knuckle,

and when said valve is closed the forward transverse Yedges e of thisshield enter a transverse groove f in the upper or inner surface of thevalve and prevent the heated products of combustion from 4leaking aroundthe pivoted end Yof the valve into the elbow.

i VThe valve is pivoted by means of a transverse rock-shaft or spindle Gwhich extends through said knuckle and is securedthereto by a set-screwg. This spindle is ,journaled in bearings in the side-walls of the rearend oi' the valve-seat, and one end of said spindle extends through itsbearings and has a crank-arm H projecting rearwardly therefrom, thehandle k of which has a flexible wire c secured to and leading therefromby means of which it is moved to open and close the valve.y YExhaust-pipe A has a longitudinally elongated opening therein where theflattened elongated end of elbow B is attached thereto.` The elbow isattached to the exhaustpipe very securely by means of' a flexible plateof sheetlmetal K. This plate is, preferably, of a rectangular shape, andit has a central opening` therein for the reception of the adjacentrectangular end of the elbow. When making this. opening, transverse cutsare made in said plate the lengthof which corresponds to the width oftheengaging endof the elbow, and these `transverse cuts are separated adistance corresponding to the length of the inlet end of the elbow andthey are connected midway their ends Vby a longitudinal cut. Y V

The lips I, I, thus produced, are bent upward, and when plate K isattached to the elbow, the rectangular end of the latter is placedbetween said lips 1, 1, and secured to the same by screws J, J, or othersuitable means. The plate is then bent around exhaust pipe A and clampedthereto by clips consisting of metal bands L, L, and bolts M, M. vTheadvantage derived from the use of the flexible inetalplate K is that itcan bev used to attach thevalve to any sized eX- haust-pipe, and thusavoid the necessity of` trated, as it is possible to substituteequivalents therefor that would answer practically as well. v

What we claim as new is l. A cut-out valve comprising a pipe hav-Ying-anopening therein, van elbow the inlet opening of which constitutes'a valve-seat through which the bore of said elbow com- VYmunicates withthe bore of said pipe, a flexible .plateV of sheet metal having anopening Ytherein the longitudinal edges of which are lflanged upward andsecured to the sides of the inlet end of said elbow, and annular clipsfor securing said plate to said pipe.

2. A cut-out valve comprising a pipe having Va longitudinally elongatedopening therein, an elbow the inlet opening of which constitutes avalve-seat and substantially corresponds in dimensions to' said openingthrough Vwhich it :communicates .with the pipe, and annular, clips forsecuring. said plate to said pipe. v

3. A cut-out valve comprising a pipe having Y a longitudinally elongatedopening therein, an elbow the inlet opening of which constitutes avalve-seat and substantially corresponds in dimensions to said opening Ythrough which it communicates with the vbore of said pipe, avalve havinga transverse knuckle at its rear endand pivotally mounted in the rearendV of said valve-'seat between which latter and the rounded knuckle ofsaid valve there is a transverse depression, a iiex'ible plate of vsheetmetal having an opening therein whose edges are flanged upward andsecured to the sides of the inlet end of said elbow, and means forsecuring said plate to said pipe.

v 4. A cut-out valve comprising a pipe having a longitudinally elongatedopening therein, an elbow the inlet kopening of which constitutes avalve-seat and substantially corresponds in dimensions to said openingthrough which it communicates with the bore of said pipe, a valve havinga transverse `knuckle at its rear end and pivotally mounted inthe rearend of said valve-seat between whichY latter and the rounded knuckle ofsaid valve there is a transverse depression, a transverse shield formedin and made integral with the rear end of said valve-seat which archesover the inner portion-of said knuckle, a flexible plate of sheet metalconnected to said inlet end and adapted to be bent toconform to thecurvature of said pipe, and clipsfor securing said plate to said pipe.

5. A cut-cutV valve comprising a pipe having a longitudinally elongatedopeningr therein, an elbow the inlet opening of which constitutes acountersunk valve seat through which said elbow communicates with saidpipe, means for securing said elbow to said piper` and a flat valve theinner surface of which is substantially tangential to the circumferenceof the bore of the pipe, said valve having a transverse knuckle at itsrear end the axis of which is substantially tangential to the outercircumference of said pipe, the edges of said valve being adapted to litinto said countersunk seat and said valve having its rear edge roundedto form a depression between the end and .rear edge of said seat, andsaid knuckle having its upper segment enter a transverse groove adjacentand parallel with the rear of said seat.

In witness whereof we have hereunto set our hands and seals this 27thday of September, 1918.

THOMAS M. ROBERTS. THOMAS BOVEY.

Witnesses:

FRANK D. THoMAsoN, WILLIAM BEEBE.

